There are 7 unique IR modes on 850NM IR illumination so that you can adjust the visibility of the subject to satisfy the needs of different levels of light. Even in fully dark condition, the CMOS image sensor can present the clear image up to 300m (984ft). Press "IR UP" button to increase the brightness up to the result you would prefer, the max level is "7"; press "IR Down" to decrease the brightness. The higher the infrared light gear is adjusted, the farther and clearer the observation is. Super mini size, easy to carry. High-performance Infrared Night Vision Goggles with CMOS sensor enables you to achieve a view without limitation of ambient light. Featured with excellent optical clarity day and night use fully multicoated 25 mm objective lens, 3x magnification and 4x digital zoom Infrared Binoculars are for animals and flying creatures surveillance. High-performance Digital Night Vision Binoculars can run continuously for 11 hours, high-definition images with 4000x3000 pixels, 1440x1080@ 30FPS video. The body's unique non-slip and 6-button design is easy to use.